It was in the university _______ they fell in love with each other, _____ brought both of them happiness.

A．when, which

B．that , which

C．where, that

D．which , who

设备租赁与设备购买相比，引起企业现金流量发生的变化的是（）。

A.销售量

B.销售收入

C.企业所得税

D.与销售相关的税金